Valve-opening device.



G. A. FARRAH.

VALVE OPENING DEVIUE. APPLIUATION FILED 1350.17, 1909.

nuenfon Patented Feb. 14

y UNITED 'STATES PATENT OFFICE.

GEORGE A. FARRAH, or SPENCER. WEST` VIRGINIA.

VALVE-OPENING DEVICE.l

Specification of Letters Patent.

Patented Feb. 14, 1911'.

Application filed December 17, 1909. Serial No. 533,623. l

To all uiom it may concer/fi: Y

ing.

In deep well pumping it frequentlyy happens that by sand and othermatter collectnig on the. valve seat, the valve is prevented fromworking properly. This difliculty can be readily remedied by opening thevalve,`

and letting' the oil or other fluid run back into the well'to wash awaytheaccumul'ation on the valve seat. It also becomes necessary at timesto pull the tubing out ofthe Well, and when this is done itis desirableto first empty the oil r other fluid contained in the tubing back intothe well, in order to prevent. the same from being wasted. lVhenordinary valves are used, this cannot be done and the oil or other fluidis wasted, amounting sometimes to several barrels. However, by the useof my invention, the valves can be readily opened to letthe oil or otherfluid run back into the well, and this ma)v also be done if it isdesired to flood the well. which is usually done by drilling a hole inthe tubing at the bottom of the well, this necessitating a shut down ofthe pump until the oil or other fluid leaks out..

The invention has for its object to provide a device for the purposestatedwhich is simple in structure, easily1 operated, and eilicient andreliable in action.

ll'ith this object in view, the invention consists in a novelconstruction and arrangement of parts to be hereinafter described andclaimed, reference being had to the drawing hereto annexed in which,

Figure 1 is an elevation of a standing valve and a pump piston valveshowing the application of the invention. Fig. 2 is a central verticalsection ofthe parts shown in Fig. 1. Fig. 3 is a view similar to Fig. 2showing the parts in another position.

Referring to the. drawing, 5 denotes the easing of the standing valvelocated at the bottom of the well tubing, the latter not being shown.The valve body is provided with a packing leather 6 whereby it is heldat a fluid tight.4 tit withinthe well tubing.

The valve casing is tubular, and contains aseat 7 for a ball valve S.the upper end of Athe easing being providedwith a cage 9 inclosing theb'all. '.lhis cage screws on the Vupper end of the valve casing, and hasan interior shoulder 10 engageable with one side of an annular flange'11 on the valve seat,

7 said seat being in the form of a sleeve lit ting inthe bore of thecasing 5, and having the other Vside of the flange in. engagement` withthe upper end of the easing, against which it is held by the shoulder10.

Rising from the upper end of the valve` age 9. and formed integraltherewith, is a tube 12, in which is slidably mounted a tubular stem 13having at its lower end an enlargement 14 engageable with a` seat madein the lower end of the tube 12.

On the stem 13, above the upper end of the tube 12, is screwed a sleeve15 having a. depending tubular portion 1G loosely titting on the tube 12so that it may slide up and down thereon. Around the stein 13 is coileda spring 17 engageable at one end with a shoulder 17 1 in the bore ofthe tube 12, and at the opposite end with the sleeve 15. The tension ofthe spring 17 may be adjusted by screwing the sleeve 15 up or down onthe stein 13.

The stein '13 projects from the upperend of thel sleeve 15, and on saidprojecting-end is screwed a coupling head 18, between which head andsaid end of the sleeve is clamped a ring 19 formed with a downwardlyprojecting linger 20, having its lower end intiirned so thatA it mayengage the ball valve 8, and push it ofi' its seat 7. The finger 20 liesin a groove made in the outer surface of the tubular portion 16 of' thcsleeve 15, and itextends through one of the side openings of the cage 9.Into the upper end of the coupling head 18 is screwed a tubular stem 21which is fora purpose to be presently described. At 22 is indicated thepump piston, the same being tubular, and containing a seat. 23' for aball valve 24. The stein 21 is in axial alinement with the bore of thepiston, and is adapted to 4enter said bore when said piston is loweredsufficiently, so that it may engage the ball valve 24 and lift the sameoff its seat. The length of the stein 21y is such that it does notunseat thevalve 24 during the nor* mal working stroke of the piston.

To unseat the'ball valve 8, the piston 22 is lowered until the 'stem 21enters the same, and lifts the valve 24 oii' its seat, the valve beingelevated until it engages the upper end of its cage.\A continueddownward movement of the piston, vover the rod 21,

slides the sleeve 15 downwardly on the tube` 12, this. downward movementt being con- V and release said valve when the stem 21` is standingvalve; of a tube-rising from said,

released by the piston, whereupon the valvedro s back to its seat 7. Thevalve 24 drops bac to its seat when the piston 22 is returnedvto itsworking position. y

By the device herein described, the valve can be readily opened topermit the well tubing to empty, the device is simple in structure, andcan bel easily operated, and it therefore efectually serves the purposefor which it isA designed. v

What is claimed is 1. In a well, the combination with the valve, asleeve slidably mounted on the tube, a valve opening device carried bythe sleev'e,

and engageable with 'thefvalve ro r when the sleeve is lowered, meansfiar .owerin the sleeve, and lyielding means opposing sai movement ofthe sleeve.I

2. In a well, the combination with Ythe standing valve; of a tube risingfrom the ca e thereof, `a stem loosely mounted in the tu e, a sleevecarried by the stem and slidably mounted on the aforesaid tube, a valveopening device earriedby the sleeve, and engageable withthe valve properwhen saidsleeve is'lowered, and means for lowering the sleeve.

3. In a well, the combination vwith'ithe standing valve; of a tuberising 'from-.the cage thereof, a stem slidably mounted in the tube, asleeve carried bythe stem, and

slidably mounted on the aforesaid tube, a

coupling head mounted` on the stem, a ring held between f the couplinghead and the sleeve, and a valve opening ldevice carried by the ring,and adapted to `engage the valve proper to unseat the same.

In testimony that I claim the foregoing .as myy own, I have heretovalhxed my signature inthepresence of vtwo witnesses.

' GEORGE A. FARRAH. Witnesses: A. W. THOMAS,

7 Go: F. CUNNINGHAM.

